AIIMS 2015 Physics Question Paper for free online practice with solutions

A wire having mass m and length 1 can freely slide on a pair or parallelsmooth horizontal rails placed in vertical magnetic field B. The rails areconnected by a capacitor of capacitance C. The electric resistance of the rails and the wire is zero. If a constant force F acts on the wire as shown in the figure. Then, the acceleration of the wire can be given as